Add EmbeddedWorker interfaces in Blink API

public/web/WebServiceWorkerGlobalScopeProxy.h

Index: public/web/WebServiceWorkerGlobalScopeProxy.h
diff --git a/Source/web/WorkerFileSystemClient.h b/public/web/WebServiceWorkerGlobalScopeProxy.h
similarity index 72%
copy from Source/web/WorkerFileSystemClient.h
copy to public/web/WebServiceWorkerGlobalScopeProxy.h
index 2c29ccd3dc10746502e3afe43fe5d90ad1633df9..940dd16664050e67020c642f0603aa5536833b40 100644
--- a/Source/web/WorkerFileSystemClient.h
+++ b/public/web/WebServiceWorkerGlobalScopeProxy.h
@@ -28,27 +28,25 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef WorkerFileSystemClient_h
-#define WorkerFileSystemClient_h
-
-#include "modules/filesystem/FileSystemClient.h"
-#include "wtf/Forward.h"
+#ifndef WebServiceWorkerGlobalScopeProxy_h
+#define WebServiceWorkerGlobalScopeProxy_h
 
 namespace WebKit {
 
-// FIXME: This could be probably unified into non-worker FileSystemClient
-// implementation.
-class WorkerFileSystemClient : public WebCore::FileSystemClient {
+// A proxy interface to talk to the ServiceWorker's GlobalScopeProxy
+// implementation. All methods of this class must be called on the worker
+// thread.
+class WebServiceWorkerGlobalScopeProxy {
 public:
-    static PassOwnPtr<FileSystemClient> create();
-    virtual ~WorkerFileSystemClient();
-
-    virtual bool allowFileSystem(WebCore::ExecutionContext*) OVERRIDE;
+    // FIXME: Add service worker specific upcalls.
 
-private:
-    WorkerFileSystemClient();
+    virtual void resumeWorkerContext() { }
+    virtual void attachDevTools() { }
+    virtual void reattachDevTools(const WebString& savedState) { }
+    virtual void detachDevTools() { }
+    virtual void dispatchDevToolsMessage(const WebString&) { }
 };
 
 } // namespace WebKit
 
-#endif // WorkerFileSystemClient_h
+#endif // WebServiceWorkerGlobalScopeProxy_h